EP2017561A2 - Accumulateur thermique - Google Patents

Accumulateur thermique Download PDF

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Publication number
EP2017561A2
EP2017561A2 EP08012928A EP08012928A EP2017561A2 EP 2017561 A2 EP2017561 A2 EP 2017561A2 EP 08012928 A EP08012928 A EP 08012928A EP 08012928 A EP08012928 A EP 08012928A EP 2017561 A2 EP2017561 A2 EP 2017561A2
Authority
EP
European Patent Office
Prior art keywords
heat
layers
wsk
heat storage
storage body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08012928A
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German (de)
English (en)
Inventor
Wido E. Brecht
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2017561A2 publication Critical patent/EP2017561A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the invention relates to a heat storage, in particular as part of a solar system, a solar hot water system or a geothermal system for heating a building.
  • the invention is based on the object to provide a heat storage, which is easy and inexpensive to produce commercially available materials in practically any size and is readily integrated into the heating system of a house, in particular, the heat storage in existing buildings can be subsequently integrated in a simple manner should.
  • the blocks are preferably made of ceramic, clay or chamotte, ie of such materials, which have a high heat storage capacity.
  • the blocks are cuboid, flat plates.
  • the heat accumulator according to the invention has the advantage that it can be produced in a simple manner and inexpensively from commercially available materials, such as ceramic, clay or fireclay bricks, in practically any size.
  • the heat storage is readily integrable in the heating system of a house, in particular, the heat storage in existing buildings can be subsequently integrated in a simple manner, for example, in an old, no longer needed boiler room.
  • the layers are preferably planar layers.
  • the heat supply line and the heat extraction line preferably do not run in the same layer, ie preferably there is no layer in which both the heat supply line and the heat extraction line run simultaneously; Rather, the heat supply line and the heat extraction line preferably extend in mutually adjacent layers.
  • the heat supply line extends in at least one of the layers and the heat extraction line in at least one other of the layers.
  • the number of layers is preferably at least three, or a multiple thereof, wherein the layer or layers through which the heat supply line passes, and the layer or layers through which the heat extraction line passes, alternate from one layer to another.
  • the blocks are juxtaposed and stackable next to one another and / or stackable.
  • the outline of the blocks may be cuboid or plate-shaped.
  • all layers are produced identically.
  • several or all of the blocks are each provided with a groove and arranged so that these grooves together form a continuous, either rectilinear or curved or partially rectilinear and partially curved channel through which one of the heat transport lines passes or in which one of the heat transport lines is at least partially recessed.
  • A6 in at least one of the layers, several or all of the blocks are each provided with a groove and arranged in pairs opposite one another so that these grooves together form a continuous tubular, either rectilinear or curved or partially rectilinear and partially curved cavity which runs one of the heat transport lines.
  • the channel or the tubular cavity has an oval, elliptical or otherwise oblong cross section.
  • the diameter of the channel or the cavity perpendicular to the layer is preferably greater than that parallel to the layer.
  • the heat transfer duct extending in the channel or in the cavity preferably has an oval, elliptical or otherwise oblong cross section, so that it is tight and under pressure on the wall of the channel or the cavity is applied and thus a good heat transfer between the module and heat transfer line is formed when it is set by the first or second fluid under internal pressure and thus tends to assume a circular cross-section under elastic deformation.
  • the diameter of the heat transport line perpendicular to the layer is preferably greater than that parallel to the layer, so that under the internal pressure-induced deformation of the heat transport line no disperse forces perpendicular to the layers arise
  • the diameter of the heat transport line in the mechanically relaxed state of the same greater than the largest diameter of the cavity or the channel, as in the same manner in the internal pressure-free state of the heat transport line, namely by the restoring force of the same, a close concern of the same is guaranteed to the blocks.
  • the diameter of the heat transport line in the mechanically relaxed state of the same is greater than the smallest diameter of the cavity or the channel.
  • the channel or the tubular cavity is meandering.
  • the heat storage body is preferably surrounded by a thermal insulation.
  • the first and second fluids preferably each consist of water or of water with at least one additive dissolved therein, e.g. a corrosion or antifreeze.
  • the building blocks may in particular be those which are suitable as components for the production of floors with underfloor heating.
  • An elastic, plastic or viscous thermally conductive material may be present between the heat transport pipes and the boundary walls of the gutters Be material that reduces the thermal resistance between the heat transport lines and the heat storage body.
  • At least part of the building blocks can be interconnected or connected to one another mechanically rigidly to one another by means of a hardened or curable bonding substance, in particular tile adhesive, cement or concrete.
  • a hardened or curable bonding substance in particular tile adhesive, cement or concrete.
  • This compound also has a high thermal conductivity.
  • the heat accumulator may in particular be part of the heating system of a house or other building.
  • the heat accumulator may be part of a solar system or a solar hot water system or a geothermal system, by means of which the first fluid can be heated before entering the heat supply line.
  • At least one heating wire extends in the heat storage body for, preferably additional, electrical heating of the heat storage body.
  • at least one other heating element for, preferably additional, electrical heating of the heat storage body is arranged in the heat storage body.
  • the heat storage may be part of a solar system, which is capable of generating the heating current for the heating wire or for the other heating element by means of photovoltaics.
  • the heat accumulator is part of a wind turbine, which is capable of generating the heating current for the heating wire or for the other heating element by means of wind power.
  • heating of the heat storage body is possible both convectively via the heat supply line and electrically by means of heating wire or heating element.
  • the heat extraction line is preferably connected to a radiator or a heating line for heating a room or building, so that the room or building can be heated by removing heat from the heat storage according to the invention.
  • the heat storage can, in addition, be connected to a district heating network.
  • This variant allows the use of excess, stored in the heat storage body heat by feeding into the district heating network.
  • the heat storage is part of a district heating power plant, which may be in particular a solar power plant.
  • the layers need not be horizontally oriented; they also do not need to run parallel to each other.
  • the heat storage body is not formed in layers by monolithic building blocks but by a potted and hardened material, e.g. Concrete, through the interior of the heat transport lines run. In this case, the heat storage body is thus not constructed of layers.
  • the layers are not or not all formed by monolithic building blocks but by a potted and hardened material, e.g. Concrete.
  • the heat storage body is thus constructed of layers, but not or not completely formed by monolithic building blocks.
  • the heat storage body is made up of layers, of which at least one is formed by monolithic building blocks and at least one by a potted and hardened material, eg concrete.
  • each layer in which a heat transport line runs is preferably formed by potted and hardened material, wherein between these layers at least one such layer is located, which is formed by monolithic building blocks.
  • the heat storage body is thus constructed of layers, but not completely formed by monolithic building blocks.
  • the heat accumulator has no heat supply line.
  • there is at least one electrical heating element in the heat storage body e.g. Heating cable or heating resistor by means of which the heat storage body is electrically heated, for example by photovoltaic.
  • the invention allows in particular the entry of environmentally friendly and CO 2 -free recovered heat in the heat storage body mainly in the summer and their gradual removal for heating predominantly in winter, because the heat storage according to the invention can be readily designed so that a months-long storage of very large amounts of heat only small losses is possible.
  • the need for fuels such as oil, gas or coal for heating buildings can be drastically reduced or even completely eliminated with the help of the invention with a very low construction cost and very cost.
  • a erfindunstraunstraer heat storage device a heat storage body WSK according to the FIGS. 1 and 5 on, which has several or many planar layers, for example, seven planar layers S1, S2, S3, S4, S5, S6, S7, each of which is formed by a plurality of monolithic building blocks B.
  • an inventive heat accumulator has at least two heat transport lines T, namely a heat supply line T1 and a heat extraction line T2.
  • the term "heat transport line” with the reference symbol T stands here generally as a collective term for the heat supply line T1 or the heat extraction line T2.
  • the heat supply line T1 is traversed by warm or hot in the same incoming water or embedded, embedded in the heat storage body WSK and successively through the layers S2, S4 and S4 each meandering, so that this water in these layers to give heat to the heat storage body WSK and this This is largely uniformly able to heat.
  • the heat extraction line T2 is also embedded in the heat storage body WSK and successively traverses the layers S1, S3, S5 and S7 respectively meandering fashion. It is traversed by water or flow through which cool or cold enters the heat extraction line T2 and therefore absorb heat from the heat storage body WSK and dissipate outside of the heat storage is capable.
  • the heat storage body WSK consists of the layers S1-S7. Each of these layers is composed of a plurality of building blocks B or B '.
  • Each brick B, B ' is provided with a groove R and R', respectively, and, except for the gutter, is parallelepiped, i. he has a cuboid outline shape. But not all building blocks B, B 'have the same shape; Rather, two different forms B and B 'of blocks, each with a cuboid outline shape are used.
  • the building blocks B ' are located in the two end regions of each layer S1-S7 and each have a channel R' which is curved by 180 °, while all other building blocks B have rectilinear channels R.
  • the cross-sectional shape of the channel is semi-oval and in all blocks B, B 'the same.
  • FIG. 2 An example of a brick B having a straight groove R is shown in FIG FIG. 2 shown.
  • FIG. 4 shows this with the example of a pair of modules B with straight channel.
  • each layer S1-S7 are arranged in pairs opposite one another so that their grooves R, R' together form a continuous tubular cavity H, which meanders through the layer in its center plane.
  • those sections of the cavity H which are located in one of the two end regions of the layer, in each case by use of building blocks B ' curved channel R 'curved by 180 °, while the remaining portions of the cavity H by using blocks B with rectilinear groove R rectilinear.
  • Each layer S1-S7 is thus formed by a double layer of blocks B, B '.
  • each layer S1-S7 Through the cavity H of each layer S1-S7, one of the heat transport lines T, namely in the layers S2, S4 and S6, the heat supply line T1 and in the layers S1, S3, S5 and S7, the heat extraction line T2.
  • those layers through which the heat supply line T1 passes and those layers through which the heat extraction line T2 passes change from one layer to another.
  • the tubular cavity H has in the example shown an oval cross-section, wherein its diameter perpendicular to the layer is greater than that parallel to the layer. Also in the cavity H extending heat transport line T has an oval cross-section, wherein also the diameter is greater perpendicular to the layer than that parallel to the layer.
  • This geometry of the heat transport lines T has the advantage that when the water in the interior of the conduit is subjected to pressure of, for example, 2 bar, elastic deformation of the conduit cross-section occurs, because the oval conduit cross section under internal pressure has the tendency to become circular. This results in at least a portion of the circumference of the line to a dense concern of the heat transfer line T under pressure against the walls of the grooves R, R 'and thus to a very significant improvement of the heat transfer between the heat transfer line T and the heat storage body WSK.
  • a portion of the heat transport line T is in FIG. 3 shown.
  • the grooves R, R 'in the building blocks B and B' may also each have a semicircular cross-section, so that after the stacking of at least two pairs together belonging blocks - stacked on each other as in FIG. 4 shown - a formed either rectilinear or curved cavity H, which has a circular cross-section.
  • the heat transfer line T located in the cavity H also has a circular cross-section, the outer diameter of which must fit precisely in the inside width of the cavity H in order to ensure good heat transfer.
  • the lower half of the heat transport line T in the lower block, the upper half of the heat transfer line T in the upper block based on a horizontal diameter-sectional plane.
  • FIG. 1 shows a central cross section through a section of one of the layers, wherein the cross-sectional plane is parallel to the layer.
  • the heat transport line T runs meandering through the layer within the continuous cavity formed by the grooves R, R 'and has 180 ° bends on the end faces of the layer.
  • the direction of flow of the water in the heat transport line is indicated by arrows.
  • FIG. 5 shows the heat storage body WSK, of which in FIG. 1 a layer is shown, in cross-section along the sectional plane AA of FIG. 1 which is perpendicular to the layers S1-S7.
  • the heat supply line T1 passes through the layers S2, S4 and S6 respectively meandering;
  • the heat extraction line T2 passes through the layers S1, S3, S5 and S7 respectively meandering.
  • the blocks B, B ' may in particular consist of ceramic, clay or chamotte, ie of such materials, which have a high Have heat storage capacity.
  • the water in the heat transport lines T can be mixed with one or more additives dissolved therein, for example to reduce corrosion or for antifreeze.
  • the blocks B, B ' can be mutually mechanically rigidly connected to each other by means of a curable bonding agent, in particular tile adhesive, cement or concrete, so that the heat storage body WSK is a continuous, rigid solid. Likewise, it is possible to put the blocks B, B 'only loosely on each other and thus form loose, superimposed layers of the blocks B, B'.
  • a curable bonding agent in particular tile adhesive, cement or concrete
  • the heat storage body WSK is to reduce the heat losses of a thermal insulation D surrounded ( FIG. 5 ).
  • the thermal insulation may include, for example, a thick layer of a highly thermally insulating material and a layer of heat reflection film.
  • the heat accumulator can be part of the heating system of a building and e.g. be sunk in the basement or under or next to the building in the ground.
  • the water, which is provided for the flow through the heat supply line T1 can be heated prior to entering the same, in particular by means of solar energy.
  • the water which is provided for the flow through the heat supply line T1 be heated before entering the same by means of geothermal energy.
  • the heat storage WSK can be part of a solar hot water system, in particular, in which this water is in a circuit which is formed in part by the heat supply line T1 and partially exposed by the solar radiation tubes.
  • the heat extraction line T2 may be connected to radiators or a floor heating coil for heating the building. Of course, heat can be supplied simultaneously via the heat supply line T1 and removed via the heat extraction line T2.
  • a heat storage body WSK With a sufficiently large design of the heat storage body WSK, it is possible to store in this during a summer so much heat that the building can be heated so long only with heat from the heat storage body WSK, that during the entire following winter no supply of external energy is needed , A heat storage body WSK the size of a small room (eg 10-20m 3 ), for example, in the case of small to medium-sized single-family homes already be sufficient for this; even with much smaller heat storage bodies, the energy savings that can be achieved with the aid of the invention are considerable.
  • a small room eg 10-20m 3
  • FIG. 6 shows an embodiment of a heat storage body according to the invention WSK ', which is different from the heat storage body WSK of FIG. 5 distinguished by additionally embedded heating wires HD. These serve for electrical additional heating of the heat storage body WSK '.
  • the necessary power can be generated in particular environmentally friendly by means of a photovoltaic system or a wind turbine.
  • the heat accumulator according to the invention is part of a solar system, which has both a solar hot water system for heating the water for the heat supply line T1 and a photovoltaic system or wind turbine for additional heating of the heat storage body WKS 'on electric way.
  • thermoelectric heating wire HD or other heating element for the electrical heating of the heat storage body WSK 'by passing only the heating wire between the layers for heat input.
  • This heating wire or the heating element may be part of a solar system, which is capable of generating the heating current for the heating wire HD or the heating element by means of photovoltaics. The heat is removed, as described above for the heat storage according to the FIGS. 1 to 5 has been described.
  • the invention is industrially applicable e.g. in the field of building services, heating technology, energy supply and district heating technology as well as environmental technology.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
EP08012928A 2007-07-18 2008-07-17 Accumulateur thermique Withdrawn EP2017561A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007033734A DE102007033734A1 (de) 2007-07-18 2007-07-18 Wärmespeicher, insbesondere als Teil einer Solaranlage einer solaren Warmwasseranlage oder einer Geothermie-Anlage zur Beheizung eines Gebäudes

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Publication Number Publication Date
EP2017561A2 true EP2017561A2 (fr) 2009-01-21

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EP08012928A Withdrawn EP2017561A2 (fr) 2007-07-18 2008-07-17 Accumulateur thermique

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007068A3 (fr) * 2010-07-12 2012-05-18 Siemens Aktiengesellschaft Stockage et récupération d'énergie thermique sur la base du principe à contre-courant du transport d'agent de transfert de chaleur
WO2012140015A1 (fr) * 2011-04-13 2012-10-18 Sgl Carbon Se Module d'accumulation de chaleur et accumulateur de chaleur
DE102016120664A1 (de) * 2016-10-28 2018-05-17 Hyperion Energy Ug (Haftungsbeschränkt) Wärmespeichersystem
CN109945715A (zh) * 2019-04-24 2019-06-28 东莞市劲腾精彩空气处理技术有限公司 基于pcm蓄热材料的热交换器及其制备方法
ES2728439A1 (es) * 2019-05-13 2019-10-24 Julio Martinez Naya S A Equipo de acumulacion e intercambio de calor por resistencias electricas en triangulacion para calentar un fluido
WO2021034417A1 (fr) * 2019-08-22 2021-02-25 Westinghouse Electric Company Llc Dispositif de stockage d'énergie
US11248851B2 (en) 2017-06-21 2022-02-15 Westinghouse Electric Company Llc Energy storage device
WO2022198250A1 (fr) * 2021-03-22 2022-09-29 Kälte- und Systemtechnik GmbH Appareil de stockage et de sortie d'énergie sensible et latente afin de refroidir des fluides
US11692778B2 (en) 2017-06-21 2023-07-04 Westinghouse Electric Company Llc Energy storage device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011118106A1 (de) * 2011-11-10 2013-05-16 Westinghouse Electric Germany Gmbh Wärmespeichermodul und modularer Wärmespeicher
DE102011118105A1 (de) * 2011-11-10 2013-05-16 Westinghouse Electric Germany Gmbh Wärmespeichermodul und Wärmespeicher
DE102012017039A1 (de) 2012-08-29 2014-03-06 engtec GmbH engineering company for product development + int. project management Feststoffwärmespeichermodul. Herstellverfahren und Hybridwärmespeicher
DE102013201128A1 (de) * 2013-01-24 2014-07-24 Robert Bosch Gmbh Hochtemperaturwärmeübertrager
CN107120834A (zh) * 2017-07-11 2017-09-01 徐文斌 一种燃油燃气有机热载体炉

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT327339B (de) 1972-03-30 1976-01-26 Tech Gebaudeausrustung Veb K Warmespeicher aus nichtmetallischem, festem speichermaterial, insbesondere fur elektrische beheizung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT327339B (de) 1972-03-30 1976-01-26 Tech Gebaudeausrustung Veb K Warmespeicher aus nichtmetallischem, festem speichermaterial, insbesondere fur elektrische beheizung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007068A3 (fr) * 2010-07-12 2012-05-18 Siemens Aktiengesellschaft Stockage et récupération d'énergie thermique sur la base du principe à contre-courant du transport d'agent de transfert de chaleur
US8966902B2 (en) 2010-07-12 2015-03-03 Siemens Aktiengesellschaft Storage and recovery of thermal energy based on counter current principle of heat transfer medium transportation
WO2012140015A1 (fr) * 2011-04-13 2012-10-18 Sgl Carbon Se Module d'accumulation de chaleur et accumulateur de chaleur
DE102016120664A1 (de) * 2016-10-28 2018-05-17 Hyperion Energy Ug (Haftungsbeschränkt) Wärmespeichersystem
US11248851B2 (en) 2017-06-21 2022-02-15 Westinghouse Electric Company Llc Energy storage device
US11692778B2 (en) 2017-06-21 2023-07-04 Westinghouse Electric Company Llc Energy storage device
CN109945715A (zh) * 2019-04-24 2019-06-28 东莞市劲腾精彩空气处理技术有限公司 基于pcm蓄热材料的热交换器及其制备方法
ES2728439A1 (es) * 2019-05-13 2019-10-24 Julio Martinez Naya S A Equipo de acumulacion e intercambio de calor por resistencias electricas en triangulacion para calentar un fluido
WO2021034417A1 (fr) * 2019-08-22 2021-02-25 Westinghouse Electric Company Llc Dispositif de stockage d'énergie
WO2022198250A1 (fr) * 2021-03-22 2022-09-29 Kälte- und Systemtechnik GmbH Appareil de stockage et de sortie d'énergie sensible et latente afin de refroidir des fluides

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Publication number Publication date
DE102007033734A1 (de) 2009-01-22

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